Debt (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Components of Long-term Debt

(in millions of Canadian dollars except percentages)			Maturity	Currency in which payable	2017		2016
6.500%	10-year Notes	(A)	May 2018	U.S.$	$	345	$	369
6.250%	10-year Medium Term Notes	(A)	Jun 2018	CDN$	375		375
7.250%	10-year Notes	(A)	May 2019	U.S.$	439		469
9.450%	30-year Debentures	(A)	Aug 2021	U.S.$	314		336
5.100%	10-year Medium Term Notes	(A)	Jan 2022	CDN$	125		125
4.500%	10-year Notes	(A)	Jan 2022	U.S.$	311		333
4.450%	12.5-year Notes	(A)	Mar 2023	U.S.$	438		469
2.900%	10-year Notes	(A)	Feb 2025	U.S.$	878		940
3.700%	10.5-year Notes	(A)	Feb 2026	U.S.$	313		335
7.125%	30-year Debentures	(A)	Oct 2031	U.S.$	439		470
5.750%	30-year Debentures	(A)	Mar 2033	U.S.$	307		328
4.800%	20-year Notes	(A)	Sep 2035	U.S.$	375		401
5.950%	30-year Notes	(A)	May 2037	U.S.$	558		597
6.450%	30-year Notes	(A)	Nov 2039	CDN$	400		400
5.750%	30-year Notes	(A)	Jan 2042	U.S.$	308		330
4.800%	30-year Notes	(A)	Aug 2045	U.S.$	687		736
6.125%	100-year Notes	(A)	Sep 2115	U.S.$	1,129		1,208
5.41%	Senior Secured Notes	(B)	Mar 2024	U.S.$	111		126
6.91%	Secured Equipment Notes	(C)	Oct 2024	CDN$	120		133
7.49%	Equipment Trust Certificates	(D)	Jan 2021	U.S.$	52		56
Obligations under capital leases
6.57% – 6.99%		(E)	2022 – 2026	U.S.$	148		163
12.77%		(E)	Jan 2031	CDN$	3		3
					8,175		8,702
Perpetual 4% Consolidated Debenture Stock		(F)		U.S.$	38		41
Perpetual 4% Consolidated Debenture Stock		(F)		G.B.£	6		6
					8,219		8,749
Less: Unamortized fees on long-term debt					60		65
					8,159		8,684
Less: Long-term debt maturing within one year					746		25
					$	7,413	$	8,659

Schedule of Capital Lease Obligations Included in Long-Term Debt

At December 31, 2017, capital lease obligations included in long-term debt were as follows:

(in millions of Canadian dollars)	Year	Capital leases
Minimum lease payments in:
	2018	$	15
	2019	15
	2020	15
	2021	15
	2022	105
	Thereafter	37
Total minimum lease payments		202
Less: Imputed interest		(51		)
Present value of minimum lease payments		151
Less: Current portion		(4		)
Long-term portion of capital lease obligations		$	147